Import Hours from .csv without colon

I have a time series data set that I need to import into Matlab. The hour time data are in the following format: 30 100 130 200 ...

I cannot get Matlab to recognize all of the hour values because there is no delimiting colon and the variation in the number of characters (two characters for 30, and up to 4 characters for 1000 for example).

Any suggestions?

[Stephen23]

What does 30 represent? What does 1000 represent?

[Grant Lockridge]

time of day. 30 would be the equivalent of 00:30, 1000 would be 10:00. Additionally, 1300 would be 13:00 and 2100 would be 21:00

Answer 1

[Pieter Hamming]

Lets say D is a column-array of your data:

 D=[30;100;1200;330];

All digits before the last 2 are hours, so lets extract them:

 hours=floor(D./100); %for our example data: hours=[0;1;12;3];

Substract the hours from the original data to have only the minutes left:

 minutes=D-hours.*100; %for our example data: minutes=[30;0;0;30];

Either you're done now, or you can make a duration array out of it: dur=duration(hours,minutes,0);